Motor truck



R .E G. A L F P M. H..

@ich 28,1924.

MoToR TRUCK Filed June '17.1922 3 sheets-sheet 1 JU v l IN VEN TOR HAF/Pr /7 P/-z wie Oei. 28 1924.

Y H. M. PFLAGER MOTOR TRUCK Fned June 17,1922 s sheets-sheet? "lf vg' [NV/SNTOR Moe/Py /Z FFA iff f HTTTORNEY TIA/'VEN T -LATTURNEY I5 `Sheets-Sheet F H. M. PFLAGER MOTOR TRUCK l i sa) Filed June l'f.

5 invented a certain new and Patented Oct. 2e, 1924.

HARRY M. P FLAGER, 0F S12-LOUIS,

are,

COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF NEW JERSEY.

Moron TRUCK.

Appllication led June 17, 1922.

To all '1e/wm t may concern:

Be it known that I, HARRY M. PFLAGER, a citizen of 'the United States, residing at the city of St. Louis, and State of Missouri, have useful Improvement in Motor Trucks,'of which the following is a full, clear, and exact description, such as will enable others skilled inthe art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this application, in' which,-

Figure l is atop proved motor truck.

plan vview of my irn- Figure 2 is a sectional view taken on line 2-2 'of Figure 1. l

Figure 3 is an end elevational View.

Figure 4 is a longitudinal vertical section.

F igure- 5 is a side elevation.

This invention relates toa new and useful improvement in motor trucks of the type d isclosed in a copending application led by me of even date herewith.

.The obj ect of this invention is to construct a motor truck frame and engine mount of cast steel, gearing the motor shaft to a countershaft mounted on a rigid extension on the underframe, which countershaft operates cranks at each end thereof which are c onnected by any suitable pitmans to crank pins on the truck wheels, said truck wheels being in turn connected by connecting rods.

The truck is equipped with a conventional type of internal combustion engine with the usual 4friction clutcliand selectivel driving gear, whereby the countershaft is driven, and by the pitmans and connecting rods the truck wheels are likewise driven. The type of motor employed may be of any commercial type, l

and preferably is capable of developing from three to six hundred horsepower depending upon the grades encountered and the load to be hauled.

In practice, there is usually a truck under each end of the car, and eaohof these trucks,

may be motor-equipped with controlling means therefor extending through the platform of the car and into a vestibule or cab located at the end or ends of the car. Each car thus becomes a self-contained motor Serial No. 569,143.

driven unit and maybe employed on side, branch and tap lines, as they are sometimes called, in hauling or delivering freight to the' main lines. l Being of standard gauge and having standard equipment, such a motor car i can be coupled to a train on the main line for a long haul. The motor car, of coursepwill takel care of the shorter hauls, and by replenishing the liquid fuel, may make hauls of 'greater or less distance. v

I .have `illustrated anA internal combustion engine as a form vof motive power used, but

'it is vobvious that'other types ofmotors could be employed. Where the road is electrified, electric motors could be used.

In the drawings, the truck frame is shown as being made of a single casting, 1areferably steel, in which 1 indicates the Side members, '2 the end members and 3 the transom members. The side members and transoms are preferably box-shaped in cross-section (as shown in Figure 2) while the end members,

as indicated at the left and right of Figure4, are substantially channel-shaped and I- shaped respectively. These end transom members may be provided. with perforated lugs for the attachment ofthe brake rigging (not shown).

4 are channel shaped longitudinally disposed members extending from one of the end members 2 to one of the transoms 3, said members 4 vdiverging slightly, asI shown in Figure ,1, to provide a space for the flywheel of the engine which is supported by the members 4.

5 indicates the bolster having the usual cen- 'ter bearing 6, said bolster having spring seats near earch end resting upon springs ,8, shown in ,this instance as elliptic springs. The ends of the bolster extend under the side members' of the upwardly. and outwardly to lprovide side bearings for the car body, (see Figure 2).

Springs 8 rest upon sprlng plank 9 which is in turn supported by the' cross-member 10 or' supporting links 11. y hese supporting links aresupported in position by means of pins 13 passing through bearings in theV ends i of transom 3.

14 indicates frame supporting springs restum MISSOURI, ASSIGNOR TO COMMONWEALTH STEEL truck frame and are bent pedestal jaws', as shown in Figure (TDT ing upon spaced equalizer bars lb, the ends of said bars being goose-neck in shape and supported by the journal boxes 16. These journal boxes' are arranged between pedestal jaws 17 extending downwardly from the side frame members 1 and preferablythe equalizer bars 15 are arranged on each side of the 1S indicates the wheel axles and 19 the wheels, each wheel being provided with a crank pin ZO on which is mounted the con-l necting rod 21. 22 indicates the end of'an extension of the truck frame, said extension with spaced upwardly facing being provided machine finished surfaces to which may bolted bearing caps as indicated.

24e is a countershaft mounted in the bear? ings provided by the truck extension, such countershaft having counterbalaned crank arms 25 on each end connected by means of pins 23 and pitmans 26 to the crank pin of the adjacent truck wheel. 28 indicates a gear casing for housing in a worm gear 27, with which worm gear meshes a worm 29 on a shaft 3() eXtendin'g lengthwise of the truck and being provided with a balance or flywheel 3l on its other end and beyond the bolster. rlhe bolster is provided with openings-32 through which the engine driven shaft SO'passes.. rlhe transoms 3 are depressed at their centers so that-this engine driven shaft 30 is free to rotate thereabove (see Figure 2).

33 indicates the engine casing `mounted upon the supporting members 4, said engine casing being provided with the usual complement of cylinders and being connected to drive the shaft 30. The gear casing 27 may house the transmission gear. li have not shown any of the controlled parts for my improved motor truck, but it is obvious that these may be provided to be operated frbm a cabin orl vestibule in the end of the car under which the truck is arranged.

It will be observed that the engine and the counter-shaft which it drives are mounted on the saine rigid frame and hence are not liable to get out of alinement due to any change in the ultimately driven wheels with respect to the truck frame. rlfhe relation betweeny the countershaft and the truck wheels which it drives is such that said wheels are permitted a slight independent vertical movement as well as lateral play without disturbing the pitman and connecting rod connections.

What l claim'is:

1. A truck frame consisting of a single steel casting having side, end and `transein members, longitudinally disposed motor supporting members between an end and an adjacent transom member, and a countershaft supporting extension arranged at the opposite end of the truck frame.

v. motor frame designed to 'heisses 'motor supporting frame members arranged' and counterat one end of said truclrrfraine. shaft supporting frame 'members arranged at the op osite end counterba anced crank shaft 'thereon and pitman connections between. shaft and said wheels.v v

3.V ln a truck, a frame including transenne, a bolster, wheels and axles, a motor mounted upon one end of said frame, a counter shaft mounted on the other end of said frame, and a vdrive shaft connecting said and counter shaft and passing through said bolster and over said transorns, and driving connections between said coun-- ter shaft and said wheels.

4. A truck having transoms depressed at their centers, a driving shaft extending above the depressed'portions of said transoms and throughout a substantial part of the length of the truck, a motor VVfor driving said shaft, said motor being supported by one end of the truck, and a eountershaft driven vby said motor, said countershaft being mounted-in the oppositeiend of said truck.

5. ln a truck, pieces and transoms connecting said side pieces and depressed between the same, a motor on one-end of said frame, and a drive shaft extending over the depressed portions of said transoms toward the other end 'of said frame. Y'

6. The combination of a one-piece truck support a. moter'at one end and a countershaft at its opposite'end, a m0- tor, a countershaft, driving connections between said motor and countershaft, truck wheels, and driving connections between said counteishaft and'truck wheels Y the sides of the truck frame.

7. The combination of aA truck frame, its wheels and axles, a bolster supported in said frame, said bolster being provided with openings or'recessesfor the passage of a rotating shaft, and transoms on each side of said bolster, saidsjtransoins being deflected to il permit thepassage of said shaft.v

8. ln a truck, afranie' including` side pieces and transoms connecting said side pieces and depressed between thesame, a bolster4 having a transverseopening above the top ofthe depressed portions of said transoms, a motor on one end of said' frame, and a drive shaft extending over said transoms and through the opening in said bolster toward the other end of said frame.

' 9. ln a one-piece cast truck frame, side pieces, pedestals. ends, an integral eatension on one of said ends in substantial alignment with said sides and pedestals and providedv with bearing, surfaces forA a trans-y said v crank of'said truck frame, a. j

lil-ll located beyond j lll@ 1,s1a',344 v verse counter shaft located beyond the end mounted in said,Ap'e'destalgv a counter shaft of the frame proper.

journal in said bearings, and pitmans befv 10. In a truck, a one-piece cast frame in tween said wheels andthe ends of said 10 cluding pedestals and bearingsffor a transcounter shaft. 5 verse counter shaft spaced from said pedes- In testimony whereof I hereunto aixvm y y v tals, said pedestals and bearings being in signature this 12th day of June,1922. vsubstantial alignmenh. a Wheeled axle r H. M. PFLAGER. 

